You have to use what, when, where, how, in a sentence.
Answer: kinetic energy
Explanation:
Kinetic energy is the form of energy related to the motion of an object. The kinetic energy of an object is given by:
where m is the mass of the object and v its speed. Therefore, any object in motion has kinetic energy: in this case, the bowling ball is in motion before the collision, so during the collision it transfers its kinetic energy to the pins.
Answer:
Em = 30 J
Explanation:
The principle of conservation of mass and energy is one of the most important in physics, it establishes that energy cannot be created just by transforming it.
Therefore, the mechanical energy at a point is the same throughout the movement, only in some parts it will be kinetic, in others potential and in the intermediate points a mixture of the two, but the total value is always the same.
Em = K + U
Em = 17.5 + 12.5
Em = 30.0 J
At the point just before touching the ground the mechanical energy is the same Em = 30 J
Answer:
The heat going from your hands heat the water in the flask. As is heated some molecules of water starts to change to vapor phase, increasing the vapor pressure over the water. When this vapor pressure equals the pressure inside the closed flask, the water starts to boil.